Consumers who may have eaten under-processed SpaghettiOs might suffer from possible nausea or vomiting.

Campbell Soup i recalling 35,000 cases of its popular SpaghettiOs in the United States, admitting that some of its varieties may have been under-processed.

The U.S. Department of Agriculture announced the recall Thursday, saying that the affected varieties were manufactured between December 2008 and June 2010.

Anthony Sanzio, a spokesperson with Campbell, said that the varieties under the recall may not have hit the shelves. However, he didn't entirely rule out the possibility that the under-processed SpaghettiOs had reached consumers.

The voluntary recall covers three varieties of the canned spaghetti product - SpaghettiOs with Meatballs, SpaghettiOs A to Z with Meatballs, and SpaghettiOs Fun Shapes with Meatballs (Cars).

A routine inspection at the company's plant in Paris, Texas revealed that some of the products may not have been thoroughly processed.

The affected varietes have a "use-by" date between June 2010 and December 2011 and a plant code of EST4K.

Customers who eat the under-processed SpaghettiO's may experience gastrointestinal problems such as nausea and vomiting.